Burr carbide set contains SA1DC, SC1DC, SD1DC, SE1DC, SF1DC, SG1DC, SL1DC, SM1DC. CNC machined from the highest quality tungsten carbide. It is used primarily on die grinders for weld slag removal, chamfering, weld preparation, milling or deburring on most metals, especially steel, stainless steel, alloys or exotics. Double cut burrs are ideal for harder metals, produce the finest chips and smoothest cutting action. Fast mill cut burrs are ideal for softer metals and have larger flutes for aggressive cutting action and efficient chip ejection.